Respuesta:
a) (-3).[(-2)+(-4)]
-3.[-2-4]
-3.[-6]
=18
b) (+4).[(-5)+(+2)]
+4.[-5+2]
4.[-3]
= -12
c) (+6):[(+5)-(+7)]
+6 :[5-7]
6:[-2]
=-3
d) (-20):[(-6)-(-2)]
-20:[-6+2]
-20:[-4]
=5
e) [(-8)+(+7)].(-3)
[-8+7].-3
[-1]. -3
=3
f) [(-9)+(-3)]:(+6)
[-9-3]: 6
[-12]:6
= -2
Explicación paso a paso:
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Verified answer
Respuesta:
a) (-3).[(-2)+(-4)]
-3.[-2-4]
-3.[-6]
=18
b) (+4).[(-5)+(+2)]
+4.[-5+2]
4.[-3]
= -12
c) (+6):[(+5)-(+7)]
+6 :[5-7]
6:[-2]
=-3
d) (-20):[(-6)-(-2)]
-20:[-6+2]
-20:[-4]
=5
e) [(-8)+(+7)].(-3)
[-8+7].-3
[-1]. -3
=3
f) [(-9)+(-3)]:(+6)
[-9-3]: 6
[-12]:6
= -2
Explicación paso a paso: